Identification is the basis of traceability management. Beginning with definition of identification, this paper introduces relevant standards for identification requirements in civil aircraft design and manufacturing process. Combined with the characteristics of civil aircraft manufacturing and management, the basic requirements of civil aircraft identification content, the selection principle of civil aircraft identification method are introduced, and the commonly used identification methods of civil aircraft are described in detail. In view of the existing problem in the identification methods adopted in civil aircraft system, the application advantages of two dimensional code technology in civil aircraft identification and traceability management are expounded.